problem with seriestrajectory, reopen the file and the series turned into anonymous block

[recamax]

Good morning to all
I often use the sequential command to copy eqidistant graphic elements along a director
sometimes when I reopen the design the series magically moved into anonymous block (*u...,)
So I can't mofify the show anymore, I have to explode and do it again, does anyone have any ideas?
an early thanks to all
maximum

 

[rpor66]

I believe it depends on the rescue format used, if you use an antecedent version, autocad transforms it. As soon as I can verify.

 

[rpor66]

verified, even saved in an antecedent format nothing changes.
isn't that the file was opened and saved by an older autocad?